EPA regulations under the Toxic Substances Control Act (TSCA) impose significant restrictions on the import of asbestos-containing articles into the United States. Importers of goods under 681140 must comply with TSCA reporting and certification requirements, and many product categories are effectively prohibited. Consult EPA guidance and a licensed customs broker before attempting to import any asbestos-containing article.

Fiber cement under 6811 uses Portland cement bonded with cellulose or similar fibers processed into thin, dense sheets or panels — the material used for exterior cladding and roofing. Cement-bonded particleboard under 6808 uses wood chips or vegetable waste agglomerated with mineral binders into thicker, lower-density boards. The fiber type, density, and manufacturing process are the key distinguishing factors.